Writing clean code is crucial, so the software developer constantly needs to improve his skills and code understanding.

My way to do it, is to explore others’ best practices. Here is one of them to consider:

I am not fully convinced that all the if‘s shall be refactored and removed, however the example given is much cleaner with polymorphism. Moreover it is testable and deprived of code smells and arguments of this guy seems to be reasonable.

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